Improvement in spike-extractors



NITED STATES PATENT Drrron.

' JOHN A. POWELL, OF CALIFORNIA, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND JOS. B. OROWTHERS, OF SAME PLACE.

llVlPROVEMENT. m SPlKE-EXTRACTORS.

Specification forming part of Letters Patent No. 188,407, dated March13, 1877; application filed I September 2, 1876.

To all whom it may concern:

Be it known that I, JOHN A. PowELL, of California, in the county ofWashington and State of Pennsylvania, have invented a new and usefulImprovementin Spike-Extractors, of which the followingis aspecification:

Figure l is a vertical longitudinal section of my improved machine,taken through the line as m, Fig. 2. Fig. 2 is a cross-section of thesame, taken through the line y 3 Fig. l. Similar letters of referenceindicate correspondin g parts.

The object of this invention is to furnish an improved machine forpulling railroad-spikes,

'which shall be simple in construction, convenient in use, and effectivein operation, pulling the spikes without bending them, and which shallbe so constructed as to allow the operator to always stand within thetrack, so that the instrument can be used in cuts and tunnels, upontrestle-work, and in any place where spikes can be driven. I

The invention consists in the combination of the lever, provided withone or more notches in the upper side of its forward end, the pivotedslotted bars and their rods or bolts, the clevis, the links, the clamp,and the sliding rod with eachother and with the frame, as hereinafterfully described.

A are the end frames or legs of the machine, which are so formed as torest upon the tie upon the opposite sides of the rail from which thespikes are to be drawn. To the side edges of the upper part of the frameor legs A are attached, or upon them are formed, side boards or framesB. The upper end of one of the legs A is slotted to receive the lever U,which is pivoted to projections formed upon said end, or to the sides B.To the opposite sides of the forward end of the lever O are pivoted twobars, D, the lower ends of which project below the said lever, and areconnected by a rod or bolt, d The upper ends of the bars D project abovethe end of the lever O, and are slotted to receive the rod or bolt (1 sothat by turning the bars D upon their pivot the rod or bolt 01 may bemoved from one to another of a number of notches, 0, formed in the upperside of the 'forward end of the lever O, tobring it nearer to or fartherfrom the fulcrum of said lever G, to gain power or space, as may berequired. E

'is a loop or clevis, the arms of which arev placed upon the oppositesides of the lever O, and their ends are pivoted to the rod or bolt (1,Upon the bend of the clevis E are placed two links or short chains, F,to which are pivoted the ends of the arms of the clamp G.

The arms of the clamp G are pivoted to each other in such a positionthat their jaws may be opened enough to receive and grasp the head of aspike, which is thendrawn by bearinig down upon the free end of thelever U. The spike may be started with the rod or bolt d in one of thenotches c nearest the fulcrum, which may then be moved farther outwarduntil thespike is fully drawn.

To the rod or bolt 01 is pivoted the lower end of a rod, H, which passesup along the lower edge of the lever U, and is kept in place by keepersattached to said lever G. The upper end of the rod 11 may have ahand-piece formed upon or attached to its upper end, for

convenience in operating it.

The rod H enables the rod or bolt d to be changed from one to another ofthe notches 0 without releasing the end of the level." 0,

and without allowing the clamps G to release the spike.

Having thus described my invehtioml claim as new and desire to secure byLetters Batcut- The combination of the lever 0, provided with one ormore notches, c, in the upper side of its forward end, the pivotedslotted bars D and their rods or bolts d W, the clevis E, the links F,the clamp G, and the rod H with each other and with the frame A- B,substantially as herein shown and described.

JOHN A. POWELL.

Witnesses:

JOHN R. POWELL, O. D. JOHNSTON.

